Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

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Mfr Part #	Quantity Available	Price	Series	Package	Product Status	Output Configuration	Output Type	Number of Regulators	Voltage - Input (Max)	Voltage - Output (Min/Fixed)	Voltage - Output (Max)	Voltage Dropout (Max)	Current - Output	Current - Quiescent (Iq)	Current - Supply (Max)	PSRR	Control Features	Protection Features	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package

LP2950CDTX-5.0/NOPB IC REG LINEAR 5V 100MA TO252-3 Texas Instruments	9,913 In Stock	1 : ¥9.36000 Cut Tape (CT) 2,500 : ¥3.98176 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Positive	Fixed	1	30V	5V	-	0.6V @ 100mA	100mA	120 µA	14 mA	-	-	Over Current, Over Temperature, Short Circuit	-40°C ~ 125°C (TJ)	Surface Mount	TO-252-3, DPAK (2 Leads + Tab), SC-63	TO-252-3
LM2991S/NOPB IC REG LIN NEG ADJ 1A DDPAK Texas Instruments	1,080 In Stock	1 : ¥38.43000 Tube	-	Tube	Active	Negative	Adjustable	1	-26V	-3V	-24V	1V @ 1A	1A	0.7 mA	5 mA	60dB (1kHz)	Enable	Over Temperature, Short Circuit	-40°C ~ 125°C	Surface Mount	TO-263-6, D2PAK (5 Leads + Tab), TO-263BA	TO-263 (DDPAK-5)
LT1175CST-5#PBF IC REG LINEAR -5V 500MA SOT223-3 Analog Devices Inc.	1,676 In Stock	1 : ¥66.82000 Tube	-	Tube	Active	Negative	Fixed	1	-20V	-5V	-	0.7V @ 500mA	500mA	80 µA	-	60db ~ 15dB (1kHz ~ 100kHz)	Current Limit, Enable	-	0°C ~ 125°C (TJ)	Surface Mount	TO-261-4, TO-261AA	SOT-223-3

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Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

Linear voltage regulators, including LDO (Low Drop Out) types, are used to provide a stable output voltage that is nominally invariant with respect to changes in load current, input voltage, or environmental factors. Their operating principle requires that the input voltage be maintained above the desired output voltage by some minimum amount, and function on the basis of converting whatever excess voltage is present at the input to heat. While this renders them less efficient than switch-mode voltage regulators for most applications, they are often better suited for applications with high sensitivity to noise.